I have been a DM from 1st edition D&D to every incarnation in between and at first did not even like 4th but after some friends made me read the books found the game very easy to run and simplistic in a good way reminded me of 2nd edition in some ways, with it ease to run. And then Dias Ex Machina came along and took it to the next level I have bought every book he has put out pdf download and hardback, the man sense of humor and ability to use and understand the spirit of the game and system is phenomenal. This is a company to watch as they are to 4th edition as pathfinder was to 3.5 so if you have not picked up or looked at 4th please give this companys books a look, who knows you might find something you never knew you missed.